| Anemia signifies a decrease in Hb or Hct
concentration. It is a sign of an underlying disease
rather than a specific diagnosis. In general, An Hb< 13.5
g/dl in a male or 12.5 g/dl in an adult women is
considered anemia. There is many kind of anemia based
into the etiology of the disease. Anemia is an expression
of many pathologic conditions and is not itself a disease
state but a clinical sign of such disorders. Therefore,
analysis of any anemia should follow a tripartite
logical pathway: (1) seek mechanisms by which the anemia
occurs, such as bleeding, lack of red cell production, or
excessive red cell destruction; (2) identify associated
diseases that cause anemia; (3) evaluate morphologically
the peripheral blood smear
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